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Full text of "IS 14934: Oxyfluorfen Technical"

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Disclosure to Promote the Right To Information 

Whereas the Parliament of India has set out to provide a practical regime of right to 
information for citizens to secure access to information under the control of public authorities, 
in order to promote transparency and accountability in the working of every public authority, 
and whereas the attached publication of the Bureau of Indian Standards is of particular interest 
to the public, particularly disadvantaged communities and those engaged in the pursuit of 
education and knowledge, the attached public safety standard is made available to promote the 
timely dissemination of this information in an accurate manner to the public. 

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Jawaharlal Nehru 

Step Out From the Old to the New 



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PROTECTED BY COPYRIGHT 



IS 14934 : 2001 

(Reaffirmed -2012) 



Indian Standard 
OXYFLUORFEN TECHNICAL — SPECIFICATION 



ICS 19.020,65.100.01 



©BIS 2001 

BUREAU OF INDIAN STANDARDS 

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG 
NEW DELHI 110002 

August 2Q{i\ Price Group 1 



Pesticides Sectional Committee, FAD 1 



FOREWORD 

This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Pesticides 
Sectional Committee had been approved by the Food and Agriculture Division Council. 

Oxyfluorfen is a herbicide used in the formulations meant for agricultural purpose. It is a selective contact herbicide. 

Oxyfluorfene is accepted common name by the International Organization for Standardization for 2-chloro-trifluoro- 
P-tolyl-3 ethoxy-4-nitrophenyl ether. The empirical structural formula and the molecular weight of oxyfluorfen are 
as follows: 

Empirical Formula Structural Formula Molecular Weight 



OCH2CH3 




In the preparation of this standard due consideration has been given to the provisions oi Insecticides Act, 1968 
and the rules framed thereunder. However, this standard is subjected to restrictions imposed under the Act and 
Rules wherever applicable. 

For the purpose of deciding whether a particular requirement of this standard is complied with, the final 
value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with 
IS 2 : 1960 'Rules for rounding off numerical values ( revised)' . The number of significant places retained in the 
rounded off value should be the same as that of the specified value in this standard. 



IS 14934 : 2001 



Indian Standard 
OXYFLUORFEN TECHNICAL — SPECIFICATION 



1 SCOPE 

This standard prescribes the requirements and the 
methods of sampling and test for oxyfluorfen technical. 

2REFERENCES 

The following Indian Standards contain provisions 
which through reference in this text, constitute 
provision of this standard. At the time of publication, 
the editions indicated were valid. All standards are 
subject to revision, and parties to agreements based 
on this standard are encouraged to investigate the 
possibility of applying the most recent editions of the 
standards indicated below: 

IS No. Title 

1070 : 1992 Reagent grade water ( third revision) 

6940 : 1982 Methods of test for pesticides and 

their formulations {first revision ) 

8190(Part2): Requirements for packing of 

1 988 pesticides : Part 2 Liquid pesticides 

( second revision ) 

10946 : 1996 Methods of sampling for technical 
grade pesticides (first revision ) 

3 REQUIREMENTS 

3.1 Description 

The material shall be in the form of brown viscous 
semi solid mass. 

3.2 The material shall also comply with the 
requirements given in Table 1 . 

Table 1 Requirements for Oxyfluorfen Technical 

SI Characteristic Require- Method of Test, 

No. ment Rcf to 



Annex of CI. No. of 
This IS 6940 

Standard 



(I) 



(2) 



(3) (4) 

A 



i) Oxyfluorfen content, 70.00 
percent by mass, Min 

ii) Moisture content, 0.50 — 

percent by mass. Max 

iii) Acidity, percent 1.50 — 

by mass HjSO^, Max 



(5) 



4.1 



13.5.4 



4 PACKING 

The material shall be packed in mild steel drum 
suitably lacquered with epoxy resin from inside. The 
general requirements as given in IS 8 190 ( Part 2 ) shall 
also be followed. 

5 MARKING 

5.1 The container shall bear legibly and indelibly the 
following information: 

a) Name of the material; 

b) Name and address of the manufacturer; 

c) Date of manufacture; 

d) Date of expiry; 

e) Batch number; 

f) Oxfluorfen content percent ( mim ); 

g) Any other information required under the 
Insecticides Act, 1968 and Rules framed 
thereunder; and Standards of Weights and 
Measures (Packaged Commodities ) Rules, 
1977. 

5.2 BIS Certification Marking 

The product may also be marked with the Standard 
Mark. 

5.2.1 The use of the Standard Mark is governed by 
the provisions of the Bureau of Indian Standards Act, 
I9$6 and the Rules and Regulations made thereunder. 
The details of conditions under which the licence for 
the use of the Standard Mark may be granted to 
manufacturers or producers may be obtained from the 
Bureau of Indian Standards. 

6 SAMPLING 

Representative examples of the material shall be 
drawn as prescribed in IS 1 0627. 

7 TESTS 

7.1 Tests shall be carried out by the appropriate 
methods referred to in col 4 and 5 of Table 1 . 

7.2 Quality of Reagents 

Unless specified otherwise, pure chemicals and 
distilled water ( see IS 1 070 ) shall be employed in tests. 

NOTE — 'Pure chemicals' shall mean chemicals that 
do not contain impurities which affects the results of 
analysis. 



IS 14934 : 2001 



ANNEX A 

[Table I, SI No. (i)] 

DETERMINATION OF OXYFLUORFEN CONTENT 



A-1 PRINCIPLE 



Oxyfluorfen sample and internal standard are weighed 
accutately in a measuring flask and dissolved in a 
solvent. A sample/internal standard solution is then 
injected and estimated gas chromatographically using 
flame ionization detector ( FID ). 

A-2 APPARATUS 

A-2.1 Gas Chromatograph ( GLC ) 

The instrument is equipped with a flame ionization 
detector and may be coupled to printer-plotter- 
cum-integrator. The operative parameters are suggested 
below, which can be changed, in any other instrument 
employed, provided standardization is done. 

A-2.2 Column 

SS, 360 cm length and 3.2 mm inner diameter packed 
with 3 percent Dexil 300 on chromosorb WHP 
(80-100 mesh). 

A-2.3 Temperature 



Injector temperature 


: 250°C 


Detector temperature 


: 300°C 


Column oven ( isothermal ) 


: 240X 


A-2.4 Gases 




Carrier gas 


: 30ml/min 


A-3 REAGENTS 




A-3.1 Acetone (AR Grade) 




A.3.2 Xylene (AR Grade) 





A-3.3 Internal Standard : Triphenyl Methane or 
Equivalent 

A-3,4 Standard Oxyfluorfen — of known purity. 

A-4 PROCEDURE 

A-4.1 Prepare AcetonerXylene as solvent mixture in 
the ratio of 25:75. 

A-4.2 Preparation of Internal Standard Solution — 

Weigh accurately about 3.0 g of internal standard in 
a 100-ml volumetric flask, dissolve and make up the 
volume with Acetone : Xylene mixture so as to make 
30 mg/ml solution of internal standard. 



A-5 PROCEDURE 

A-5.1 Preparation of Standard Oxyfluorfen Solution 

A-5.1.1 Warm the standard Technical, Oxyfluorfen to 
70°C on a waterbath till the material is in the form of 
a homogeneous mass ( to dissolve impurities, if any ) 
and use this material for immediate weighing. 
Formulation is to be weighed without heating. 

A-5.1.2 Weigh Oxyfluorfen ( standard of known 
purity ) accurately about 0.070 g ( equivalent 0.050 g 
Oxyfluorfen content) in 10-ml volumetric flask, add 
1 .0 ml internal standard solution. Shake it vigorously 
to dissolve it and dilute it to mark with Acetone : Xylene 
mixture. This will give standard Oxyfluorfen solution. 

A-5.2 Preparation of Sample Solution 

Weigh accurately a quantity of sample equivalent to 
50 mg Oxyfluorfen into a 1 0-ml volumetric flask, add 
1.0 ml internal standard solution with the help of a 
1 -ml pipette and dilute to mark using AcetonerXylene 
mixture. This will give us respective Oxyfluorfen sample 
solution. 

A-6 ESTIMATION 

Inject 2 ^l of standard solution in GC and fmd response 
factor ( RF ) value. Inject two to three times to get 
consistent results. 

where 

RF ( sample solution ) 

Area of sample peak 



; and 



Area of internal standard peak 

RF ( standard solution ) 

Area of standard peak 
Area of internal standard peak 

RF Sample solution 
% Oxyfluorfen = — — — x 



M Standard 



RF Standard solution 
X % purity of standard solution 



M Sample 
where 

M Standard = mass of technical standard, and 
M Sample = mass of sample standard. 



Bureau of Indian Standards 

BIS is a statutor>' institution established under the Bureau of Indian Standards Act, 1986 to promote 
harmonious development of the activities of standardization, marking and quality certification of goods and 
attending to connected matters in the country. 

Copyright 

BIS has the copyright of all its publications. No part of these publications maybe reproduced in any form without 
the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the 
standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to 
copyright be addressed to the Director (Publications), BIS. 

Review of Indian Standards 

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed 
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are 
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards 
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue 
of 'BIS Catalogue' and 'Standards : Monthly Additions'. 

This Indian Standard has been developed frpm Doc : No. FAD 1(914). 

Amendments Issued Since Publication 



Amend No. 


Date of Issue 


Text Affected 











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